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X-ray spectropolarimetry of high-temperature plasmas

Authors :
V.L. Kantsyrev
N.D. Ouart
Alla S. Shlyaptseva
Stephanie Hansen
A. G. Petrashen
B. S. Bauer
Dmitry A. Fedin
S. A. Kazantsev
Ulyana Safronova
Source :
Review of Scientific Instruments. 72:1241-1244
Publication Year :
2001
Publisher :
AIP Publishing, 2001.

Abstract

X-ray spectropolarimetry is a powerful new tool for investigating the anisotropy of high-temperature plasmas. It is sensitive to the energetic electron distribution function and magnetic field, which, in general, have not been measured adequately. This diagnostic is based on the theoretical modeling of x-ray line polarization-dependent spectra measured simultaneously by spectrometers with different sensitivities to polarization. The increasing sophistication of spectroscopic monitoring of high-temperature plasmas has led to the necessity to account for both non-Maxwellian electron distribution functions and polarization properties of lines. This diagnostic can be applied to a broad range of plasmas, from low-density astrophysical plasmas to dense z-pinch plasmas. This work shows how x-ray spectropolarimetry complements the usual spectroscopic monitoring of hot plasmas and demonstrates the importance of accounting for x-ray line polarization in plasma diagnostics.

Details

ISSN :
10897623 and 00346748
Volume :
72
Database :
OpenAIRE
Journal :
Review of Scientific Instruments
Accession number :
edsair.doi...........4cd9404f16369ad18dcf1b2586511d64
Full Text :
https://doi.org/10.1063/1.1324752